ASTROSAT CZTI

Data Quality Report

Orbit 45045

Creation date: 2024-06-27T23:09:21.088324
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_020T01_9000006040_45045cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45045cztM0_level2_quad_clean.evt
Size (bytes)309,939,84052,038,720
Size295.6 MB 49.6 MB
Events in quadrant A2,675,738362,787
Events in quadrant B2,108,445363,157
Events in quadrant C1,738,742356,229
Events in quadrant D4,678,585246,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106620
B087050
C078020
D0163900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3478290.833813%
B34781193.421507%
C3478581.667625%
D347996827.824087%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 3478 3478 13 13 0.37% 0.37%
B 3478 3478 68 68 1.96% 1.96%
C 3478 3478 46 46 1.32% 1.32%
D 3479 3479 844 844 24.26% 24.26%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 1208373 15446.17 363 355 78.2
A 13 248 30269 382.49 363 355 78.2
A 0 243 19588 245.92 363 355 78.2
B 5 255 273972 3757.91 362 352 72.8
B 0 189 180202 2470.07 362 352 72.8
B 0 190 72315 988.34 362 352 72.8
C 14 254 246081 2876.63 356 358 85.4
C 12 2 49817 579.01 356 358 85.4
C 15 208 26359 304.39 356 358 85.4
D 13 174 991490 12075.4 319 309 82.1
D 1 52 804729 9800.12 319 309 82.1
D 11 241 754042 9182.61 319 309 82.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter